Ejemplo n.º 1
0
        /// <summary>
        /// 得到登陸字節
        /// </summary>
        /// <param name="SqlDatatable"></param>
        /// <returns></returns>
        public byte[] GetLoginBytes(DataBranch dr)
        {
            byte[] usrname  = System.Text.Encoding.UTF8.GetBytes(serverInfo.LoginName);
            byte[] password = System.Text.Encoding.UTF8.GetBytes(serverInfo.LoginPass);

            //返回字節數
            byte[] ret = new byte[13 + usrname.Length + password.Length];
            Buffer.BlockCopy(dr.GetByte(ReceCommandType.LoginByte), 0, ret, 0, 9);
            ret[9] = (byte)usrname.Length;
            Buffer.BlockCopy(usrname, 0, ret, 10, ret[9]);
            ret[10 + ret[9]] = (byte)password.Length;
            Buffer.BlockCopy(password, 0, ret, 11 + ret[9], ret[10 + ret[9]]);
            dr.AddSumCode(ret, ret.Length);
            return(ret);
        }
Ejemplo n.º 2
0
 /// <summary>
 /// 循环发送指令,确保服务器、客户端接收到正确信息(检查校验码、重发指令)
 /// </summary>
 private void SendLoop(Socket client, byte[] sendBytes, DataBranch dr)
 {
     //设置读取字节数为零
     ReadCount = 0;
     //循环检测校验码,校验码不通过 或 接到重发指令 (重发指令)
     //ReadCount=0 确保能运行一次
     while (!dr.CheckSumCode(state.buffer, ReadCount) ||
            dr.ComparisonByte(dr.GetByte(ReceCommandType.SendAgain), state.buffer))
     {
         //发送指令
         client.Send(sendBytes);
         //接收指令
         ReadCount = client.Receive(state.buffer);
     }
 }
Ejemplo n.º 3
0
 //返回按钮发送字节数组
 public byte[] GetButtonClickSendBytes(DataBranch br)
 {
     //获得按钮属性Tag 字节数组
     byte[] sb = System.Text.Encoding.UTF8.GetBytes(ButtonTag.ToString());
     //返回字节数组
     byte[] retSendBytes = new byte[sb.Length + 9];
     //获得指令头字节数组
     byte[] commBytes = br.GetByte(ReceCommandType.ButontClick);
     //复制命令头字节
     Buffer.BlockCopy(commBytes, 0, retSendBytes, 0, commBytes.Length);
     //复制按钮属性Tag
     Buffer.BlockCopy(sb, 0, retSendBytes, commBytes.Length, sb.Length);
     //添加校验码
     br.AddSumCode(retSendBytes, retSendBytes.Length);
     //返回数组
     return(retSendBytes);
 }
Ejemplo n.º 4
0
        /// <summary>
        /// 开启客户端连接
        /// </summary>
        public bool StartConnect()
        {
            bool exist = false;

            try
            {
                //设置IP 端口
                IPAddress  ipAddress = IPAddress.Parse(serverInfo.IpAddress);
                IPEndPoint remoteEP  = new IPEndPoint(ipAddress, serverInfo.IpPort);// 11880
                // 建立 TCP/IP Socket
                client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

                DataBranch dr = new DataBranch();
                //开启连接到远程计算机
                client.Connect(remoteEP);

                //获得客户端连接
                state.workSocket = client;

                //发送登陆字节到远程
                SendLoop(client, GetLoginBytes(dr), dr);

                //发送单击按钮事件
                SendLoop(client, GetButtonClickSendBytes(dr), dr);

                // if (ShowBox != null)
                //    ShowBox(state.buffer[2] == 1 ? true : false);
                exist = state.buffer[2] == 1 ? true : false;
                //   EXIST = state.buffer[2] == 1 ? true : false;
                //关闭连接
                SendLoop(client, dr.GetByte(ReceCommandType.ExitServer), dr);

                client.Shutdown(SocketShutdown.Both);
                client.Close();
                return(exist);
            }
            catch
            {
                return(exist);
            }
        }